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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
#define CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
#include "core/include/fxge/fx_dib.h"
#include "fpdf_parser.h"
#include "fpdf_resource.h"
class CPDF_PageObjects;
class CPDF_Page;
class CPDF_Form;
class CPDF_ParseOptions;
class CPDF_PageObject;
class CPDF_PageRenderCache;
class CPDF_StreamFilter;
class CPDF_AllStates;
class CPDF_ContentParser;
class CPDF_StreamContentParser;
#define PDFTRANS_GROUP 0x0100
#define PDFTRANS_ISOLATED 0x0200
#define PDFTRANS_KNOCKOUT 0x0400
class CPDF_PageObjects {
public:
CPDF_PageObjects(FX_BOOL bReleaseMembers = TRUE);
~CPDF_PageObjects();
void ContinueParse(IFX_Pause* pPause);
FX_BOOL IsParsed() const { return m_ParseState == CONTENT_PARSED; }
FX_POSITION GetFirstObjectPosition() const {
return m_ObjectList.GetHeadPosition();
}
FX_POSITION GetLastObjectPosition() const {
return m_ObjectList.GetTailPosition();
}
CPDF_PageObject* GetNextObject(FX_POSITION& pos) const {
return (CPDF_PageObject*)m_ObjectList.GetNext(pos);
}
CPDF_PageObject* GetPrevObject(FX_POSITION& pos) const {
return (CPDF_PageObject*)m_ObjectList.GetPrev(pos);
}
CPDF_PageObject* GetObjectAt(FX_POSITION pos) const {
return (CPDF_PageObject*)m_ObjectList.GetAt(pos);
}
FX_DWORD CountObjects() const { return m_ObjectList.GetCount(); }
int GetObjectIndex(CPDF_PageObject* pObj) const;
CPDF_PageObject* GetObjectByIndex(int index) const;
FX_POSITION InsertObject(FX_POSITION posInsertAfter,
CPDF_PageObject* pNewObject);
void Transform(const CFX_Matrix& matrix);
FX_BOOL BackgroundAlphaNeeded() const { return m_bBackgroundAlphaNeeded; }
CFX_FloatRect CalcBoundingBox() const;
CPDF_Dictionary* m_pFormDict;
CPDF_Stream* m_pFormStream;
CPDF_Document* m_pDocument;
CPDF_Dictionary* m_pPageResources;
CPDF_Dictionary* m_pResources;
CFX_FloatRect m_BBox;
int m_Transparency;
protected:
friend class CPDF_ContentParser;
friend class CPDF_StreamContentParser;
friend class CPDF_AllStates;
enum ParseState { CONTENT_NOT_PARSED, CONTENT_PARSING, CONTENT_PARSED };
void LoadTransInfo();
void ClearCacheObjects();
CFX_PtrList m_ObjectList;
FX_BOOL m_bBackgroundAlphaNeeded;
FX_BOOL m_bReleaseMembers;
CPDF_ContentParser* m_pParser;
ParseState m_ParseState;
};
class CPDF_Page : public CPDF_PageObjects, public CFX_PrivateData {
public:
CPDF_Page();
~CPDF_Page();
void Load(CPDF_Document* pDocument,
CPDF_Dictionary* pPageDict,
FX_BOOL bPageCache = TRUE);
void StartParse(CPDF_ParseOptions* pOptions = NULL, FX_BOOL bReParse = FALSE);
void ParseContent(CPDF_ParseOptions* pOptions = NULL,
FX_BOOL bReParse = FALSE);
void GetDisplayMatrix(CFX_Matrix& matrix,
int xPos,
int yPos,
int xSize,
int ySize,
int iRotate) const;
FX_FLOAT GetPageWidth() const { return m_PageWidth; }
FX_FLOAT GetPageHeight() const { return m_PageHeight; }
CFX_FloatRect GetPageBBox() const { return m_BBox; }
const CFX_Matrix& GetPageMatrix() const { return m_PageMatrix; }
CPDF_Object* GetPageAttr(const CFX_ByteStringC& name) const;
CPDF_PageRenderCache* GetRenderCache() const { return m_pPageRender; }
protected:
friend class CPDF_ContentParser;
FX_FLOAT m_PageWidth;
FX_FLOAT m_PageHeight;
CFX_Matrix m_PageMatrix;
CPDF_PageRenderCache* m_pPageRender;
};
class CPDF_ParseOptions {
public:
CPDF_ParseOptions();
FX_BOOL m_bTextOnly;
FX_BOOL m_bMarkedContent;
FX_BOOL m_bSeparateForm;
FX_BOOL m_bDecodeInlineImage;
};
class CPDF_Form : public CPDF_PageObjects {
public:
CPDF_Form(CPDF_Document* pDocument,
CPDF_Dictionary* pPageResources,
CPDF_Stream* pFormStream,
CPDF_Dictionary* pParentResources = NULL);
~CPDF_Form();
void StartParse(CPDF_AllStates* pGraphicStates,
CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
CPDF_ParseOptions* pOptions,
int level = 0);
void ParseContent(CPDF_AllStates* pGraphicStates,
CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
CPDF_ParseOptions* pOptions,
int level = 0);
CPDF_Form* Clone() const;
};
class CPDF_PageContentGenerate {
public:
CPDF_PageContentGenerate(CPDF_Page* pPage);
~CPDF_PageContentGenerate();
FX_BOOL InsertPageObject(CPDF_PageObject* pPageObject);
void GenerateContent();
void TransformContent(CFX_Matrix& matrix);
protected:
void ProcessImage(CFX_ByteTextBuf& buf, CPDF_ImageObject* pImageObj);
void ProcessForm(CFX_ByteTextBuf& buf,
const uint8_t* data,
FX_DWORD size,
CFX_Matrix& matrix);
CFX_ByteString RealizeResource(CPDF_Object* pResourceObj,
const FX_CHAR* szType);
private:
CPDF_Page* m_pPage;
CPDF_Document* m_pDocument;
CFX_ArrayTemplate<CPDF_PageObject*> m_pageObjects;
};
#endif // CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
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